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A Google admin works on a server inside a container in one of Google's early data centers. (Source: Google).

For your weekend reading, here’s a recap of five noteworthy stories that appeared on Data Center Knowledge this past week:

Report: Google Uses About 900,000 Servers - Have Google watchers been overestimating the number of servers in the company’s data center network? Recent guesstimates have placed Google’s server count at more than 1 million. But new data on Google’s energy use suggests that the company is probably running about 900,000 servers.

Report: Data Center Energy Use is Moderating - The upward trend in the growth of data center energy usage has slowed, according to a new study from Stanford professor Jonathan Koomey. The report found that data center power consumption increased by 36 percent from 2005 to 2010, a much smaller increase than the 100 percent gain projected in an influential study Koomey prepared in 2007.

CyrusOne Plans 1 Million SF Data Center in Phoenix - High-density colocation specialist CyrusOne plans to build an enormous data center in Phoenix, which will reach 1 million square feet of space upon completion. The announcement marks the most ambitious expansion yet for CyrusOne, the data center and colocation unit of Cincinnati Bell.

i/o’s Modular Data Centers Roll into New Jersey - The 800,000 square foot i/o New Jersey data center is the largest example yet of a new approach to IT infrastructure, in which factory-built modular data centers are deployed inside larger structures that provide protection from the elements, along with power and connectivity.

Web.com Buys Network Solutions - Can a roll-up of marquee brands from the early days of the Web remain relevant in the age of cloud computing and social media? Web host and online marketing firm Web.com aims to find out. Web.com today said it would acquire hosting and domain provider Network Solutions in a deal valued at about $560 million.